I made my speaker wires from 4S11 & would do so again but I did not make bi wire sets so I have about 10.5 gage per lead. Thats alot of copper.
I bought enough cable to make a second 15' (appx 4.6 meters) pair and will do so this winter. The cable is worth the effort.
I can not discern wires breaking in. Some speakers, yes. But not cables or wires.
I wouldn't trust my audio memory over 200 hours anyway.
Cable coatings have a capacitance factor ..the capacitance changes over time ..
No memory required ..
Pretty easy to hear just hook a burned in cable and a fresh cable to opposite channels ..



